1def get_data(path):
2 list_1 = []
3 list_2 = []
4 with open(path) as f:
5 for line in f:
6 item_1, item_2 = line.split()
7 list_1.append(int(item_1))
8 list_2.append(int(item_2))
9 return list_1, list_2
10
11def main(list_1, list_2):
12 output = 0
13 for element_1, element_2 in zip(sorted(list_1), sorted(list_2)):
14 output += abs(element_2 - element_1)
15 return output
16
17if __name__ == "__main__":
18 print(main(*get_data("day_1_input.txt")))
1import collections
2
3def get_data(path):
4 list_1 = []
5 list_2 = []
6 with open(path) as f:
7 for line in f:
8 item_1, item_2 = line.split()
9 list_1.append(int(item_1))
10 list_2.append(int(item_2))
11 return list_1, list_2
12
13def main(list_1, list_2):
14 counter = collections.Counter(list_2)
15
16 output = 0
17 for element_1 in list_1:
18 if element_1 in counter:
19 output += element_1 * counter[element_1]
20 return output
21
22if __name__ == "__main__":
23 print(main(*get_data("day_1_input.txt")))